Answer:
4800 beats an hour
Step-by-step explanation:
there are 60 minutes in and hour
the heart beats 80 times per minute( that is actually a very high heart rate)
80*60=4800 per hour
Answer:
A
Step-by-step explanation:
<u>Answer:</u>
0 ≤ x ≤ π
<u>Step-by-step explanation:</u>
In order to define the inverse cosine functions, the domains of the cosine functions are restricted.
One major condition to define an inverse of a function is that the original function must be one‐to‐one which means that one value from the domain should correspond to only one value in the range.
So we have a restriction that is placed on the values of the domain of the cosine function which is the following:
0 ≤ x ≤ π
